dns resolver tool

I got a file with like 2000 ip addresses. one ip on each line. Is there a
dns resolver tool to get me the Full DNS name of this file?




Tony

Tony wrote:

> I got a file with like 2000 ip addresses. one ip on each line. Is there a
> dns resolver tool to get me the Full DNS name of this file?

#!/usr/bin/perl -n
use Socket;
chomp;
print gethostbyaddr(inet_aton($_),AF_INET) . "\n";


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/ /\ \ [ FAQ you ] € http://www.comtv.ru/~av95/chainik.html
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"Tony" <(E-Mail Removed)> wrote in message
news:ck4an5$j4d$(E-Mail Removed)

> I got a file with like 2000 ip addresses. one ip on each line. Is
> there a dns resolver tool to get me the Full DNS name of this file?

While the other response you received is very simple and elegant, I prefer
the recursive functionality offered by
http://jdrowell.com/projects/jdresolve


tony

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how do i make it read the file?

one ip address per line
"Innocenti Maresin" <(E-Mail Removed)> wrote in message
news:(E-Mail Removed)...
> Tony wrote:
>
>> I got a file with like 2000 ip addresses. one ip on each line. Is there a
>> dns resolver tool to get me the Full DNS name of this file?
>
> #!/usr/bin/perl -n
> use Socket;
> chomp;
> print gethostbyaddr(inet_aton($_),AF_INET) . "\n";
>
>
> --
> qq~~~~\ [ úá IP âåú ãåîúõòù ]
> / /\ \ [ FAQ you ] € http://www.comtv.ru/~av95/chainik.html
> \ /_/ /
> \____/
>
>
>

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In comp.os.linux.networking Tony <(E-Mail Removed)>:
> I got a file with like 2000 ip addresses. one ip on each line. Is there a
> dns resolver tool to get me the Full DNS name of this file?

while read ip;do host $ip;done < file

--
Michael Heiming (GPG-Key ID: 0xEDD27B94)
mail: echo (E-Mail Removed) | perl -pe 'y/a-z/n-za-m/'
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On 2004-10-08, Tony wrote:
>>> I got a file with like 2000 ip addresses. one ip on each line. Is there a
>>> dns resolver tool to get me the Full DNS name of this file?
>>
>> #!/usr/bin/perl -n
>> use Socket;
>> chomp;
>> print gethostbyaddr(inet_aton($_),AF_INET) . "\n";

> how do i make it read the file?
>
> one ip address per line

#v+
cat > file.pl << EOF
#!/usr/bin/perl -n
use Socket;
chomp;
print gethostbyaddr(inet_aton($_),AF_INET) . "\n";
EOF
chmod a+x file.pl
../file.pl /some/where/file/with.ip.one.perl.line
#v-

PS. Don't toppost and cut the signatures.

--
Stanislaw Klekot

On 2004-10-07, Tony wrote:
> I got a file with like 2000 ip addresses. one ip on each line. Is there a
> dns resolver tool to get me the Full DNS name of this file?

nslookup < file.with.ips > result

--
Stanislaw Klekot